JPS6221177B2 - - Google Patents
Info
- Publication number
- JPS6221177B2 JPS6221177B2 JP12025879A JP12025879A JPS6221177B2 JP S6221177 B2 JPS6221177 B2 JP S6221177B2 JP 12025879 A JP12025879 A JP 12025879A JP 12025879 A JP12025879 A JP 12025879A JP S6221177 B2 JPS6221177 B2 JP S6221177B2
- Authority
- JP
- Japan
- Prior art keywords
- magnetic
- pole
- recording medium
- recording
- magnetic pole
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
- 230000005415 magnetization Effects 0.000 claims description 19
- 230000035699 permeability Effects 0.000 claims description 16
- 238000011144 upstream manufacturing Methods 0.000 claims description 12
- 230000004907 flux Effects 0.000 claims description 7
- 239000000463 material Substances 0.000 claims description 4
- 239000010410 layer Substances 0.000 description 15
- 238000010586 diagram Methods 0.000 description 6
- 239000000696 magnetic material Substances 0.000 description 6
- 229910000889 permalloy Inorganic materials 0.000 description 4
- 230000008901 benefit Effects 0.000 description 2
- 238000004070 electrodeposition Methods 0.000 description 2
- 230000005284 excitation Effects 0.000 description 2
- 230000005381 magnetic domain Effects 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 238000004544 sputter deposition Methods 0.000 description 2
- 238000007740 vapor deposition Methods 0.000 description 2
- QTBSBXVTEAMEQO-UHFFFAOYSA-M Acetate Chemical compound CC([O-])=O QTBSBXVTEAMEQO-UHFFFAOYSA-M 0.000 description 1
- 238000000137 annealing Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 239000006247 magnetic powder Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000002093 peripheral effect Effects 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229910000702 sendust Inorganic materials 0.000 description 1
Classifications
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/1278—Structure or manufacture of heads, e.g. inductive specially adapted for magnetisations perpendicular to the surface of the record carrier
Landscapes
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Magnetic Heads (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12025879A JPS5644115A (en) | 1979-09-19 | 1979-09-19 | Vertical magnetization type magnetic head |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP12025879A JPS5644115A (en) | 1979-09-19 | 1979-09-19 | Vertical magnetization type magnetic head |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5644115A JPS5644115A (en) | 1981-04-23 |
| JPS6221177B2 true JPS6221177B2 (enrdf_load_stackoverflow) | 1987-05-11 |
Family
ID=14781741
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP12025879A Granted JPS5644115A (en) | 1979-09-19 | 1979-09-19 | Vertical magnetization type magnetic head |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5644115A (enrdf_load_stackoverflow) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6050607A (ja) * | 1983-08-27 | 1985-03-20 | Olympus Optical Co Ltd | 垂直磁気記録再生ヘツド |
| US4672494A (en) * | 1983-09-01 | 1987-06-09 | Matsushita Electric Industrial Co., Ltd. | Magnetic head for effecting perpendicular magnetic recording |
| JPS60197914A (ja) * | 1984-03-20 | 1985-10-07 | Olympus Optical Co Ltd | 垂直磁化型磁気ヘツド |
| DE3527468A1 (de) * | 1984-08-01 | 1986-02-06 | Matsushita Electric Industrial Co., Ltd., Kadoma, Osaka | Magnetkopf fuer quermagnetische aufzeichnung und wiedergabe |
-
1979
- 1979-09-19 JP JP12025879A patent/JPS5644115A/ja active Granted
Also Published As
| Publication number | Publication date |
|---|---|
| JPS5644115A (en) | 1981-04-23 |
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